Thats the Syncro-rev-match button. Only applies to Sport package and Nismo models.
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2010 Nissan 370Z 40th Anniversary Edition #762/1000 | Forgestar | Michelin | Swift | TRS | Z Speed | ARK | Z1 | Hawk | CFE | Evo-R | GTMat | Stillen | Seibon | Whiteline | Pioneer |
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